
In this true-crime docuseries, a family searching for answers shares clues and eye-opening testimonies about the prime suspect in the Zodiac murders.
Season 1 — 3 episodes

We Called Him Mr. Allen
The Seawaters reflect on a beloved teacher who entered their lives in 1961. As the Zodiac Killer's reign of terror unfolds, a shocking suspect emerges.

Are You the Zodiac?
Allen and the Seawaters lose touch after a trip to a college town, where a student is found slain. Years later, their ailing mentor reveals a dark secret.

Box of Secrets
As the siblings grapple with the true nature of their mother's bond with Allen, a peculiar gift and a box of clues bring them closer to the truth.
Arthur Leigh Allen
Self (archive footage)

Robert Graysmith
Self
Rita Williams
Self

David Fincher
Self (archive footage)
Paul Avery
Self (archive footage)